用文件io打印整行

Question

This is a part of my 'Phonebook' program.

void viewall(){
    int n, checking = 0;
    char name[50];

    fp = fopen("Phonebook.txt","r");
    printf ("\n\n");

    fscanf (fp, "%s %d", name, &n);
    while (!feof(fp)){
        printf (" %s +880%d\n", name, n);
        fscanf (fp, "%s %d", name, &n);
        ++checking;
    }

    if (checking == 0){
        printf (" Contact List is Empty. No Contacts to Show...");
    }

    printf ("\n\n");
    fclose(fp);

    menu();
}

This part displays all the contacts in list. But if any contact name has two parts they get separated. For example: I enter Anik Shahriar as name and then enter my number. I looked at my file and this data was there how it should be.

Anik Shahriar 01*******93

But when I wanted to display all the contacts. It got printed like this:

Anik 0
Shahriar 01*******93

How can i make the program print the whole line ?

Answer 1

This behaviour is caused by the lines

fscanf (fp, "%s %d", name, &n);

The format identifier %s scans for a single string. Any whitespace character ends the scan.

http://www.cplusplus.com/reference/cstdio/scanf/

%s
String of characters
Any number of non-whitespace characters, stopping at the first whitespace character found. A terminating null character is automatically added at the end of the stored sequence.

I suggest to use ca CSV file and use a format string like.

scanf("%[^,] %d", name, number)

Dont forget to test the scanf result value.